/**
* Calculate the total number of comment pages.
*
* @since 2.7.0
*
* @uses Walker_Comment
*
* @global WP_Query $wp_query
*
* @param array $comments Optional array of WP_Comment objects. Defaults to $wp_query->comments
* @param int $per_page Optional comments per page.
* @param bool $threaded Optional control over flat or threaded comments.
* @return int Number of comment pages.
*/
function get_comment_pages_count($comments = null, $per_page = null, $threaded = null)
{
global $wp_query;
if (null === $comments && null === $per_page && null === $threaded && !empty($wp_query->max_num_comment_pages)) {
return $wp_query->max_num_comment_pages;
}
if ((!$comments || !is_array($comments)) && !empty($wp_query->comments)) {
$comments = $wp_query->comments;
}
if (empty($comments)) {
return 0;
}
if (!get_option('page_comments')) {
return 1;
}
if (!isset($per_page)) {
$per_page = (int) get_query_var('comments_per_page');
}
if (0 === $per_page) {
$per_page = (int) get_option('comments_per_page');
}
if (0 === $per_page) {
return 1;
}
if (!isset($threaded)) {
$threaded = get_option('thread_comments');
}
if ($threaded) {
$walker = new Walker_Comment();
$count = ceil($walker->get_number_of_root_elements($comments) / $per_page);
} else {
$count = ceil(count($comments) / $per_page);
}
return $count;
}
